Tilley, D.; Ogle, D.; Cornforth, B. 2011. The pop test: A quick aid to estimate seed quality. Native Plants Journal. 12(3): 227-232.
Tilley, D.; Ogle, D.; Cornforth, B. 2011. The pop test: A quick aid to estimate seed quality. Native Plants Journal. 12(3): 227-232.